LiftMaster 3800 / 3900 / 8500 - Reverse Wound Installation

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  • เผยแพร่เมื่อ 15 ม.ค. 2025

ความคิดเห็น • 11

  • @michaeldoherty2289
    @michaeldoherty2289 ปีที่แล้ว +1

    Inspite of this being a very old video, it saved my day today. I tried to install a liftmaster 8500 on a reverse would low head door. I was totally ignorant that it wouldn't work. I saw your video this morning and proceeded install it backwards attaching it perfectly in the horizontal position. It woks great. Quiet. Powerful. Perfect. THANKS>>>>

    • @GimpyMR2
      @GimpyMR2  ปีที่แล้ว

      Haha I almost forgot about this video, thanks for the comment. I actually sold that house a while back, but even after all these year, I know that improvised setup is still in operation! Its crazy to me they still haven't updated this product to support reverse wound doors.

    • @michaeldoherty2289
      @michaeldoherty2289 ปีที่แล้ว

      For sure. Why not be able to buy a 8500R (reversed)? I had a door technician tell me its only a matter of flipping two wire on the circuit board to get the motor top run backwards. It seems to be an untapped market. @@GimpyMR2

  • @davidlu5048
    @davidlu5048 4 หลายเดือนก่อน

    Great tip. I just did the same thing on a Genie side shaft opener.

  • @robjenkins5682
    @robjenkins5682 6 หลายเดือนก่อน

    How the hell do we know of ours is reverse wound?

  • @dwalls533
    @dwalls533 9 ปีที่แล้ว +1

    Thanks for video....what type of resisters or size did you use on that again in place of the cable tension sensor???

    • @GimpyMR2
      @GimpyMR2  9 ปีที่แล้ว

      +dwalls533 I was able to defeat it with a 1k ohm 1/4 watt resistor. I just bent it into a U shape and jumped the connector. Cue garage door people yelling at us not to do it :)

  • @shawnyoung2105
    @shawnyoung2105 9 ปีที่แล้ว +1

    so do the photo eyes reverse the door when the beam is broken on the way down?

    • @GimpyMR2
      @GimpyMR2  9 ปีที่แล้ว

      Yes the photo eye safety does work. I should post a update but I had some trouble with cable tension on the opener side. Ended up installing snubbers to keep it taught.

  • @gripgaragedoor82
    @gripgaragedoor82 9 ปีที่แล้ว +1

    like opener. it,s a very good opener . you like it a lot. who install your door did it wrong cable incorrect on the drum. your will not last very long. and be problem,s

    • @michaeldoherty2289
      @michaeldoherty2289 ปีที่แล้ว

      Yes these are grat openers. But no it will not fail prematurely. This is a head door with a double track for the upper panel. The reverse wind is how they must be installed and the only way a door will work on a low ceiling. It should not affect the longevity of the opener, as long as the door is balanced and the shaft is straight and truly horizontal.